Correlation between Coronary Arteries Anatomical Pattern and Significant Coronary Artery Stenosis
Background And Objectives
Coronary Artery Diseases (CAD) are the major cause of morbidity and mortality in most societies. Despite the invasive nature of angiography, it was used as a diagnostic procedure evaluates coronary artery diseases. This study was aimed at evaluating the Pattern of coronary arteries and anatomic risk factors of significant stenosis by 64-slice multi-detector computed tomography (MDCT).
Material And Methods
In this prospective-analytic study, CT angiography data of 200 patients with suspected CAD reviewed in order to identify the coronary arteries anatomy and determine the site of stenosis. Also, Length of LM and the first Diagonal from the origin of LAD were measured.
There were three types of dominancy of coronary artery: 91% with Right Coronary Artery (RCA), 8% with Left Coronary Artery (LCA), two patients with co-dominant system. Also stenosis was observed in 6 (3%), 5 (2.5%) and 4 (2%) of arteries in LCx, RI and LM, respectively. In 21 (67.7%) of LAD stenosis were near the first diagonal (D1) origin and in RCA were near the SAN origin.
There was no significant relationship between the length of LM and the first Diagonal and number of LAD branching and stenosis frequency in LAD.
Medical Journal of Tabriz University of Medical Science & Health Service, Volume:36 Issue:3, 2014
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